X^2+4x-12=0
(x+6)(x-2)=0
X can equal -6 and 2.
x=-6
x=2
Answer:
One year from now there will be 23,880 people in Madison. In two years from now there will be 22,760 people. In three years there will be 21,640 people in Madison.
Step-by-step explanation:Please tell me if you want an explanation
Use the form y=mx+b where m is the slope and b is the y-intercept: y=4/5x-6
Let the two integers be x and y respectively
Hence;

From the first equation ;

Substitute into the third equation

Open up the bracket

Take everything to the right hand side of the equation and you'll have a quadratic equation

Solve the quadratic equation and you'll have two roots

Substitute for each value of y in the first equation
Therefore:




Therefore the answer is A